Programmable matter, is matter which has the ability to change its physical properties (shape, density, elasticity, conductivity, optical properties, etc.) in a programmable fashion, based upon user input or autonomous sensing.
The idea of programmable matter comes from understanding organic cells as the programmable (via DNA) building blocks of organic matter and speculating about how programmable building blocks for inorganic matter might be developed.
The Teacher Briefing will be available here from October 2017.
The Teaching Notes can be downloaded here from October 2017.